Solve the system of equations 2x-7y=34 and x-y=12 by combining the equations.

Answer asap ! the shortest path from point a to point b goes through a pond. to avoid the pond, you must walk straight 34 meters along one edge of the pond, then take a 90 degree turn, and again walk straight 41 meters along another edge of the pond to reach point b. about how many meters would be saved if it were possible to walk through the pond? a. 11 m b. 20 m c. 30.45 m d. 21.73 m

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?

Which one ? is the answer and how to find this answer